Welch Allyn 650 User manual

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Service Manual

WARRANTY

Instrumentation purchased new from Welch
Allyn is warranted to be free from defects in
material and workmanship under normal
use and service for a period of one year from
the date of first shipment from Welch Allyn.
This warranty shall be fulfilled by Welch
Allyn or its authorized representative repair­ing or replacing at Welch Allyn's discretion,
any such defect, free of charge for parts and
labor.

Welch Allyn should be notified via telephone
of any defective product and the item should
be immediately returned, securely pack­aged and postage prepaid to Welch Allyn.
Loss or damage in shipment shall be at
purchaser's risk.

Welch Allyn will not be responsible for loss
associated with the use of any Welch Allyn
product that (1) has had the serial number
defaced, (2) has been repaired by anyone
other than an authorized Welch Allyn Ser­vice Representative, (3) has been altered,
or (4) has been used in a manner other than
in accordance with instructions.

THIS WARRANTY IS EXCLUSIVE AND IN
LIEU OF ANY IMPLIED WARRANTY OR
MERCHANTABILITY, FITNESS FOR PAR­TICULAR PURPOSE, OR OTHER WAR­RANTY OF QUALITY, WHETHER EX­PRESSED OR IMPLIED, WELCH ALLYN
WILL NOT BE LIABLE FOR ANY INCIDEN­TAL OR CONSEQUENTIAL DAMAGES.

Model 650

Directions For Use

7420 Carroll Road, San Diego, CA
[phone] or [phone]

70777-000C

321

1. Probe storage channel

2. Normal/Monitor mode
select switch

3. Display

4. Display indicators

5. Probe

6. Battery access screw

7. Probe cover box holder/
battery access door

8. Ejection button

9. Probe cord connector &
receptacle

Note: Temperature measurement
displays in this
booklet are in °F. International units
will display measurements in °C.

SETUP

1. Unpack the Welch Allyn Ther­mometer System. Check for any
damage that may have occurred
during shipping.

2. Select the desired probe (oral
probe - green body, rectal probe

- red body).

3. Insert the probe cord connector
into the probe receptacle. Check
that the connection is secure.

4. Observe the 7-second display
test, ensuring that no display seg­ments are missing (Fig. 2).

Directions For Use

5. Insert the probe shaft into the
probe storage channel (Fig. 1).

6. Remove the tab from a box of 25
Welch Allyn disposable probe
covers and insert the box into the
holder on the thermometer.

OPERATION

1. Select the temperature mea-

surement mode (normal or moni­tor - Fig. 3). Most temperatures

are taken in the normal mode.

2. Withdraw the probe from the stor-

age channel and observe the dis­play test. The unit will then dis­play 84.0°F (28.9°C) with the low
temperature arrow ON until the
probe temperature rises above

84.0°F (28.9°C).

54

6

3. Load a probe cover onto the
probe. Hold the probe collar with
thumb and forefinger, being care­ful not to hold or press the "eject"
button. Press the collar down
firmly to secure the cover (Fig. 4).

4. Take the temperature:

FOR ORAL TEMPERATURES,

insert the probe tip gently into the
patient's slightly opened mouth.
Carefully slide the probe under
the tongue on either side of the
mouth to reach the sublingual
pocket.

FOR RECTAL TEMPERA­TURES, gently insert the probe

only 1 cm (3/8 of an inch) inside is

the rectal sphincter (less for in­fants and children).

Incorrect insertion can cause
bowel perforation. (FIG. 5) Tilt

the probe to insure good tissue
contact and continue to keep but­tocks separated until mea­surement cycle is complete.

5. During a temperature measure­ment cycle in the NORMAL mode,
a continuously increasing tem­perature should be observed on
the display. When the final tem­perature has been reached, a tone
will sound and a temperature will
be displayed. When using the
MONITOR mode, allow the tem­perature readout to stabilize for 3
minutes. The patient may then be

WARNING:

continuously monitored for as long
as necessary.

6. After the temperature measure­ment is complete, eject the probe
cover by firmly pressing the "eject"
button on the probe. (Fig. 1 ).

7. Insert the probe into the storage
channel to clear the display, in
preparation for another tempera­ture. (Fig. 6).

FEATURES

1. Two Temperature Measure­ment Modes. Normal mode pro-

vides a rapid means of oral or
rectal temperature taking under
most conditions. Monitor mode

generally used for long term mon­itoring or when difficult situations
prevent accurate temperatures
from being taken in the normal
mode.

SELF TESTS

Two internal tests are activated each
time a temperature is taken:

1. Calibration Check: an internal
check for proper calibration.

2. Microprocessor Self Check: an
internal check for proper micro­processor operation, including a
test of the entire system.

78

ERROR INDICATORS/BATTERY
REPLACEMENT

1. Error Indicators. One of four
indicators may appear on the dis­play: Malfunction, Broken

Probe, Probe Position, and Low
Battery (Fig. 7).

2. Battery Replacement. To
replace the batteries, remove the
battery compartment access
screw behind the probe cover
box (Fig. 8). Slide the access
cover to expose the batteries.
Replace with three new AA
Alkaline batteries. A 25 second
display test is automatically
performed following battery
replacement.

SPECIFICATIONS

• Range: 84.0°F - 108.0°F
(28.9°C - 42.2°C).

• Battery Capacity: Up to 1000
hours normal use.

• Calibration Accuracy: +/-0.2°F
(+/-0.1°C).

• Dimensions: length 7 inches;
width 3.7 inches; height 2.4
inches; weight 13 ounces.

CLEANING AND STERILIZATION

Normal cleaning procedure is to wipe
with alcohol, warm water, or nonstain­ing disinfectant.

ACCESSORIES AVAILABLE

• Calibration Key for verifying cali­bration - inserts in place of probe
plug and provides correct read­ing of 97.3°F (22.06°C).

• Oral and rectal probes

CUSTOMER SERVICE

For customer service, please call

[phone]